In a distributed system such as Cassandra, the most recent value of data is not necessarily on
every node all the time. The client application configures the consistency level per request to manage response time
versus data accuracy. By tracing activity on a five-node cluster, this tutorial shows the
difference between these consistency levels and the number of replicas that participate to
satisfy a request:
Returns data from the nearest replica.
Returns the most recent data from the majority of replicas.
Returns the most recent data from all replicas.
Follow instructions to setup five nodes on your local computer, trace reads at different
consistency levels, and then compare the results.